yuzuha (artist), flandre scarlet, hatsune miku, touhou, vocaloid, bad id, bad pixiv id, 2girls, :d, = =, ^ ^, aqua hair, blonde hair, bow, closed eyes, crossover, detached sleeves, hair ornament, happy, hat, hat bow, legs, long hair, multiple girls, music, necktie, open mouth, seiza, short hair, side ponytail, singing, sitting, skirt, skirt set, smile, thighhighs, twintails, very long hair, wings, zettai ryouiki